In each episode Dipper and Mabel fall in unexpected situations that involve various paranormal and supernatural creatures, and because of this stress they have serious problem with teeth. You remember they have perfect and beautiful smile ? Now it is gone and they needs a really good dentist to give her back the perfect smile. Can you handle this tough job ? Use the tools in the tray to whiten her teeth ,remove cavities or even replace some black teeth that they really has to get rid of.